Michael Kniskern
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Rank 1
Michael Kniskern
asked on 17 Sep 2012, 08:29 PM
I am getting the following error when I try to build an ASP.NET web forms application in my solution with the Telerik ReportViewer control:
The type 'Telerik.ReportViewer.WebForms.ReportViewer' exists in both 'c:\Windows\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\appdevcenter\94dab5a4\8ccebc39\assembly\dl3\aa719e0f\0c7fc604_7790cd01\Telerik.ReportViewer.WebForms.DLL' and 'c:\Windows\assembly\GAC_MSIL\Telerik.ReportViewer.WebForms\6.1.12.820__a9d7983dfcc261be\Telerik.ReportViewer.WebForms.dll' C:\inetpub\wwwroot\LearningCenter\appDevCenter\Reports\TrainingHistory.aspx
How do I resolve this error?
The type 'Telerik.ReportViewer.WebForms.ReportViewer' exists in both 'c:\Windows\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\appdevcenter\94dab5a4\8ccebc39\assembly\dl3\aa719e0f\0c7fc604_7790cd01\Telerik.ReportViewer.WebForms.DLL' and 'c:\Windows\assembly\GAC_MSIL\Telerik.ReportViewer.WebForms\6.1.12.820__a9d7983dfcc261be\Telerik.ReportViewer.WebForms.dll' C:\inetpub\wwwroot\LearningCenter\appDevCenter\Reports\TrainingHistory.aspx
How do I resolve this error?
1 Answer, 1 is accepted
0
Hi Michael,
The error you have received usually means that there is a version mismatch. Did you uninstall any previous version of Telerik Reporting on your machine? If not, most likely you still have reference to an older version or if you have copied manually assemblies in your bin folder - make sure you delete them to avoid such problems. Running the Upgrade Wizard would make sure all Telerik Reporting references have been updated to the version you have specified.
Greetings,
Elian
the Telerik team
The error you have received usually means that there is a version mismatch. Did you uninstall any previous version of Telerik Reporting on your machine? If not, most likely you still have reference to an older version or if you have copied manually assemblies in your bin folder - make sure you delete them to avoid such problems. Running the Upgrade Wizard would make sure all Telerik Reporting references have been updated to the version you have specified.
Greetings,
Elian
the Telerik team
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